Unity Editor Completely Freezing on Server Start

I can use the menu in my game to get through my server creation window, but as soon as I hit the "Start Server" button my whole editor freezes, and I have to kill it using the task manager. Because the editor completely locks up, I can't really use Debug.Logs to find where it is crashing. It worked ok before, so I'm just going to put my OnServerInitialized (which is what I changed) and what it calls in the first object.

I have structured it so that the OnServerInitialized method in my game runner object calls a method inside my Vehicle object, ActivateInput, using a BroadcastMessage. The ActivateInput method starts off my InputCoroutine in that object.

If you need to see any more code please just ask. And help would be much appreciated, I've been scratching my head on this one for a few hours now.

 public void OnServerInitialized(){
         for(int i = 0; i < playerObjects.Length; i ++)
         {
             playerObjects[i].networkView.viewID = Network.AllocateViewID();
             playerObjects[i].transform.position = offsides.position+i*Vector3.right;
         }
         
         playerObjects[0].transform.position = arenaSpawn.position;
         playerObjects[0].transform.rotation = arenaSpawn.rotation;
         camera.targetObject = playerObjects[0].transform;
         
         
         playerObjects[0].gameObject.GetComponent<Vehicle>().BroadcastMessage("ActivateInput", playerObjects[0] as NetPlayer);
         
     }
 
 public void ActivateInput(NetPlayer player)
     {
         Debug.Log("Started input co");
         this.player = player;
         StartCoroutine("InputCoroutine");
     }